Lamp



FIG. 1 is a perspective view of a lamp illustrating my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an end elevational view thereof; and

FIG. 4 is a plan view thereof.

The lamp is shaded to indicate contrast. The grommet and electric cord are shown in broken lines for illustrative purposes only. 

The ornamental design for a lamp, substantially as shown and described. 